Results 81 to 90 of about 5,037 (196)

Ground states of a non‐local variational problem and Thomas–Fermi limit for the Choquard equation

open access: yesJournal of the London Mathematical Society, Volume 111, Issue 3, March 2025.
Abstract We study non‐negative optimisers of a Gagliardo–Nirenberg‐type inequality ∫∫RN×RN|u(x)|p|u(y)|p|x−y|N−αdxdy⩽C∫RN|u|2dxpθ∫RN|u|qdx2p(1−θ)/q,$$\begin{align*} & \iint\nolimits _{\mathbb {R}^N \times \mathbb {R}^N} \frac{|u(x)|^p\,|u(y)|^p}{|x - y|^{N-\alpha }} dx\, dy\\ &\quad \leqslant C{\left(\int _{{\mathbb {R}}^N}|u|^2 dx\right)}^{p\theta } {\
Damiano Greco   +3 more
wiley   +1 more source

Global second‐order estimates in anisotropic elliptic problems

open access: yesProceedings of the London Mathematical Society, Volume 130, Issue 3, March 2025.
Abstract This work deals with boundary value problems for second‐order nonlinear elliptic equations in divergence form, which emerge as Euler–Lagrange equations of integral functionals of the Calculus of Variations built upon possibly anisotropic norms of the gradient of trial functions.
Carlo Alberto Antonini   +4 more
wiley   +1 more source

A weighted Hardy-Sobolev-Maz’ya inequality

open access: yes, 2014
We provide a weighted extension of a Hardy-Sobolev-Maz’ya inequality that is due to Filippas, Maz’ya and ...
Sourdis, Christos
core  

Persistence of the solution to the Euler equations in an end‐point critical Triebel–Lizorkin space

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 2, Page 2421-2433, 30 January 2025.
Local stay of the solutions to the Euler equations for an ideal incompressible fluid in the end‐point Triebel–Lizorkin space F1,∞sℝd$$ {F}_{1,\infty}^s\left({\mathbb{R}}^d\right) $$ with s≥d+1$$ s\ge d+1 $$ is clarified.
JunSeok Hwang, Hee Chul Pak
wiley   +1 more source

Critical growth elliptic problems involving Hardy-Littlewood-Sobolev critical exponent in non-contractible domains

open access: yesAdvances in Nonlinear Analysis, 2019
The paper is concerned with the existence and multiplicity of positive solutions of the nonhomogeneous Choquard equation over an annular type bounded domain.
Goel Divya, Sreenadh Konijeti
doaj   +1 more source

Effective upper bounds on the number of resonances in potential scattering

open access: yesMathematika, Volume 71, Issue 1, January 2025.
Abstract We prove upper bounds on the number of resonances and eigenvalues of Schrödinger operators −Δ+V$-\Delta +V$ with complex‐valued potentials, where d⩾3$d\geqslant 3$ is odd. The novel feature of our upper bounds is that they are effective, in the sense that they only depend on an exponentially weighted norm of V.
Jean‐Claude Cuenin
wiley   +1 more source

Existence, symmetry, and regularity of ground states of a nonlinear Choquard equation in the hyperbolic space

open access: yesAdvances in Nonlinear Analysis
In this study, we explore the positive solutions of a nonlinear Choquard equation involving the Green kernel of the fractional operator (−ΔBN)−α⁄2{\left(-{\Delta }_{{{\mathbb{B}}}^{N}})}^{-\alpha /2} in the hyperbolic space, where ΔBN{\Delta }_{{{\mathbb{
Gupta Diksha, Sreenadh Konijeti
doaj   +1 more source

Nonexistence and existence of solutions for a Choquard–Kirchhoff type equation involving mixed local and nonlocal operators

open access: yesElectronic Journal of Qualitative Theory of Differential Equations
In this paper, we study the following Choquard-Kirchhoff type equation $$ \left( a+b\|u\|^{p(\theta-1)}\right) \left( -\Delta_{p}u+(-\Delta)^{s}_{p}u\right) =\left( \int_{\mathbb R^N}\frac{|u(y)|^{p_{\mu}^{*}}}{|x-y|^\mu}dy\right) |u|^{p_{\mu}^{*}-2}u+\
Wenjing Chen, Jingran Feng
doaj   +1 more source

Regularity and Classification of Solutions to Fractional‐Order Systems With Hartree‐Type Nonlinearities

open access: yesAbstract and Applied Analysis, Volume 2025, Issue 1, 2025.
This paper is concerned with the positive solutions to a fractional‐order system with Hartree‐type nonlinearity and its equivalent integral system. We firstly use the regularity lifting lemma to obtain the integrability and smoothness of the solutions.
Yu-Cheng An   +2 more
wiley   +1 more source

The Hardy-Littlewood Inequality for the Solution to P-Harmonic Type System

open access: yes, 2011
[[abstract]]Hardy-Littlewood inequality is instrumental in virtually all analytic aspects of the theory of partial differential equations, linear and nonlinear.
Ronglu Li   +4 more
core  

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